Don't know how many of you eat this one let alone know what it is. Personally, I love it and can just about eat it daily if I can afford it even though I can never catch it. It lives in Antartic waters in 4-6 degrees.  It's taken some time for the Aussie industry to get its act but this fish has MSC certification so that's great. What's not so good for us consumers is that locally it's set to disappear. What's happened is the fishermen holding the licences have got new boats to fish deeper for the bigger fish. This costs more and so retail price can be expected to increase but not quite as they have found better prices in China. So whatever they catch is going there. If you like to eat toothfish you'll need to be quick. The retail outlets that I know carry this fish are running out and have been told that it'll not be replaced. The almighty dollar strikes again!